:root{
  --bg:#f6f8fc;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --stroke:#e2e8f0;
  --accent:#2563eb;
  --accent-soft:#dbeafe;
  --accent-dark:#1d4ed8;
  --success:#16a34a;
  --warning:#f59e0b;
  --danger:#dc2626;
  --shadow:0 10px 30px rgba(15,23,42,0.08);
}

*{
  box-sizing:border-box;
}

html{
  scroll-behavior:smooth;
}

body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(37,99,235,0.08), transparent 30%),
    radial-gradient(circle at top right, rgba(59,130,246,0.08), transparent 25%),
    linear-gradient(to bottom, #f8fbff, #f6f8fc);
  color:var(--text);
}

a{
  color:inherit;
  text-decoration:none;
}

img{
  max-width:100%;
  display:block;
}

.nav{
  position:sticky;
  top:0;
  z-index:100;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 20px;
  background:rgba(255,255,255,0.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(226,232,240,0.85);
  box-shadow:0 4px 20px rgba(15,23,42,0.03);
}

.brand{
  font-weight:900;
  font-size:1rem;
  letter-spacing:0.2px;
  color:var(--text);
}

.brand span{
  color:var(--muted);
  font-weight:700;
  margin-left:6px;
}

.container{
  max-width:1150px;
  margin:0 auto;
  padding:28px 18px 36px;
}

.card{
  background:rgba(255,255,255,0.92);
  border:1px solid rgba(226,232,240,0.95);
  border-radius:24px;
  box-shadow:var(--shadow);
  padding:24px;
  margin:18px 0;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.card:hover{
  box-shadow:0 16px 40px rgba(15,23,42,0.10);
}

h1,h2,h3,h4,h5,h6{
  color:var(--text);
  margin-top:0;
}

h1{
  font-size:clamp(2rem, 4vw, 3.2rem);
  line-height:1.08;
  letter-spacing:-0.03em;
  margin-bottom:10px;
}

h2{
  font-size:clamp(1.4rem, 2.8vw, 2rem);
  line-height:1.15;
  letter-spacing:-0.02em;
}

h3{
  font-size:1.08rem;
  line-height:1.25;
}

p{
  line-height:1.6;
}

.muted{
  color:var(--muted);
}

.small{
  font-size:13px;
  color:var(--muted);
}

.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid #dbe7ff;
  background:#f8fbff;
  color:var(--accent-dark);
  font-size:13px;
  font-weight:700;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 18px;
  border-radius:14px;
  border:1px solid transparent;
  background:linear-gradient(135deg, var(--accent), var(--accent-dark));
  color:white;
  font-weight:800;
  font-size:14px;
  cursor:pointer;
  box-shadow:0 10px 20px rgba(37,99,235,0.18);
  transition:transform .18s ease, box-shadow .18s ease, opacity .18s ease, background .18s ease;
}

.btn:hover{
  transform:translateY(-2px);
  box-shadow:0 14px 24px rgba(37,99,235,0.24);
}

.btn:active{
  transform:translateY(0);
}

.btn.ghost{
  background:white;
  color:var(--accent-dark);
  border:1px solid #cfe0ff;
  box-shadow:none;
}

.btn.ghost:hover{
  background:#f8fbff;
  box-shadow:0 8px 20px rgba(15,23,42,0.06);
}

.btn.small{
  padding:10px 14px;
  border-radius:12px;
  font-size:13px;
}

.steps{
  display:grid;
  gap:14px;
  margin-top:18px;
}

.step{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:16px;
  border-radius:18px;
  border:1px solid #e8eefc;
  background:linear-gradient(180deg, #ffffff, #f8fbff);
}

.num{
  width:38px;
  height:38px;
  display:grid;
  place-items:center;
  border-radius:12px;
  color:white;
  font-weight:900;
  background:linear-gradient(135deg, var(--accent), var(--accent-dark));
  box-shadow:0 10px 20px rgba(37,99,235,0.18);
  flex-shrink:0;
}

.grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}

@media(max-width:1000px){
  .grid{
    grid-template-columns:repeat(2,1fr);
  }
}

@media(max-width:620px){
  .grid{
    grid-template-columns:1fr;
  }
}

.gimg{
  width:100%;
  height:290px;
  object-fit:cover;
  border-radius:20px;
  border:1px solid #e5e7eb;
  box-shadow:0 10px 25px rgba(15,23,42,0.07);
  transition:transform .22s ease, box-shadow .22s ease, filter .22s ease;
}

.gimg:hover{
  transform:translateY(-4px) scale(1.01);
  box-shadow:0 18px 35px rgba(15,23,42,0.12);
  filter:saturate(1.04);
}

.notice{
  margin:16px 0;
  padding:15px 16px;
  border-radius:18px;
  border:1px solid #dbeafe;
  background:linear-gradient(180deg, #f8fbff, #eef5ff);
  color:#1e3a8a;
}

.form label{
  display:block;
  font-weight:800;
  margin:14px 0 7px;
  color:var(--text);
}

.form input,
.form select,
.form textarea{
  width:100%;
  padding:13px 14px;
  border-radius:14px;
  border:1px solid #dbe3ef;
  background:#ffffff;
  color:var(--text);
  outline:none;
  font-size:14px;
  transition:border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

.form input::placeholder,
.form textarea::placeholder{
  color:#94a3b8;
}

.form input:focus,
.form select:focus,
.form textarea:focus{
  border-color:#93c5fd;
  box-shadow:0 0 0 4px rgba(37,99,235,0.10);
  background:#fcfdff;
}

.row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}

@media(max-width:760px){
  .row{
    grid-template-columns:1fr;
  }
}

.footer{
  text-align:center;
  padding:18px 12px 8px;
  color:var(--muted);
  font-size:14px;
}

.section-tag{
  display:inline-block;
  padding:7px 12px;
  border-radius:999px;
  background:var(--accent-soft);
  color:var(--accent-dark);
  font-size:12px;
  font-weight:800;
  margin-bottom:12px;
}

.hero-glow{
  position:relative;
  overflow:hidden;
}

.hero-glow::before{
  content:"";
  position:absolute;
  width:280px;
  height:280px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(37,99,235,0.18), transparent 70%);
  top:-80px;
  right:-80px;
  pointer-events:none;
}

.hero-glow::after{
  content:"";
  position:absolute;
  width:220px;
  height:220px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(14,165,233,0.16), transparent 70%);
  bottom:-70px;
  left:-70px;
  pointer-events:none;
}

.soft-panel{
  border:1px solid #e6eefb;
  background:linear-gradient(180deg, #ffffff, #f8fbff);
  border-radius:20px;
  padding:18px;
}

.glass{
  background:rgba(255,255,255,0.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}

hr{
  border:none;
  border-top:1px solid var(--stroke);
  margin:18px 0;
}

/* table look if needed later */
.table{
  width:100%;
  border-collapse:collapse;
  overflow:hidden;
  border-radius:18px;
  background:white;
}

.table th,
.table td{
  padding:14px 12px;
  border-bottom:1px solid #edf2f7;
  text-align:left;
}

.table th{
  font-size:13px;
  color:var(--muted);
  font-weight:800;
  background:#f8fbff;
}

/* nice fade-in */
.fade-in{
  animation:fadeIn .45s ease;
}

@keyframes fadeIn{
  from{
    opacity:0;
    transform:translateY(8px);
  }
  to{
    opacity:1;
    transform:translateY(0);
  }
}